Steady block selling continues7 Sep 2017 19:10
01 Sep: 4,500,000 @ 0.6361 (£28.62k)
04 Sep: 1,000,000 @ 0.61 (£6,100)
04 Sep: 1,000,000 @ 0.6075 (£6,075)
04 Sep: 1,000,000 @ 0.60 (£6,000)
05 Sep: 1,000,000 @ 0.60 (£6,000)
05 Sep: 3,600,000 @ 0.55 (£19.80k)
05 Sep: 3,600,000 @ 0.55 (£19.80k)
07 Sep: 3,000,000 @ 0.5733 (£17.20k)
If this is one seller then it looks like more than 3% so a holdings RNS should be forthcoming perhaps?
Could be any one of the significant shareholders. If I had to guess I'd say the Walmsleys but just a total guess and it might not be a single seller at all.